diff --git a/PyTorch/Segmentation/nnUNet/nnunet_for_pytorch.def b/PyTorch/Segmentation/nnUNet/nnunet_for_pytorch.def
new file mode 100644
index 0000000000000000000000000000000000000000..f5803343dee7840aa6e710b1a652b26938dc7994
--- /dev/null
+++ b/PyTorch/Segmentation/nnUNet/nnunet_for_pytorch.def
@@ -0,0 +1,26 @@
+Bootstrap: localimage
+From: /proj/nsc_testing/xuan/containers/nvidia_pytorch_21.11-py3.sif
+
+
+%environment
+
+export PYTHONNOUSERSITE=True
+
+
+%post 
+
+VERSION=21.11.0
+
+mkdir /workspace/nnunet_pyt 
+cd /workspace/nnunet_pyt
+wget --content-disposition https://api.ngc.nvidia.com/v2/resources/nvidia/nnunet_for_pytorch/versions/$VERSION/zip -O nnunet_for_pytorch_$VERSION.zip
+unzip nnunet_for_pytorch_21.11.0.zip
+
+pip install --disable-pip-version-check -r requirements.txt
+pip install monai==0.8.0 --no-dependencies
+pip uninstall -y torchtext
+
+curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
+unzip -qq awscliv2.zip
+./aws/install
+rm -rf awscliv2.zip aws
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